Euclid was a really smart guy who lived from 365 - 300 B.C. He did all of the following except:

Euclid was known as

This person lived in Alexandria, Egypt in 276 BC and died in 194 BC. He was an early Greek astronomer who not only developed the lines of latitude and longitude but also determined the distance around the earth with great accuracy. His name was

Whose geometry did Eratosthenes use to calculate the tilt of the earth's axis and the circumference of the earth?

Sir Isaac Newton (choose all that apply)

This Dominican Friar who lived in the 1200s (choose all that apply)

This English man lived in the 1200s and made significant contributions in the areas of physics, geography, and optics. He was the first person to write down the formula for gunpowder.

This Italian was from Pisa and lived from 1564-1642. He supported Copernicus by using the newly invented telescope. He got into trouble with the Catholic Church and spent much of his life under house-arrest.